It is not possible to have a fetal heart again after a fetal arrest. Fetal arrest is when the embryo stops growing and developing in the uterine cavity, in which case if a fetal heart is found to be present. In this case, the following possibilities can be considered: 1. Wrong test result: doing the test too early or unreasonable test means and steps can lead to invisible obvious fetal bud and fetal heartbeat, which is not embryonic abortion. If you have a fetal heartbeat, it is necessary to distinguish it from the fetal heartbeat. 2. The number of abdominal aortic pulsations is mainly the same as the number of maternal heartbeats, at around 60 to 100 beats per minute. The fetal heart rate is relatively fast, usually around 120 to 160 beats/min. If it is determined that the fetus has stopped developing, it should be aborted promptly to avoid the fetus remaining in the uterine cavity for too long after death, which could lead to intrauterine infection. If the fetal heartbeat is normal, it means that the fetus is developing normally, so you should feel at ease, enhance nutrition in moderation and don’t be too nervous to avoid affecting the growth and development of the fetus.